Abstract : Carbon nanotubes CNTs as filler are particularly interesting because they possess very high aspect ratio length-diameter, typically up to 10,000. Hence, they can form conductive path in polymer matrix at much lower concentrations below 5%, whereas in case of carbon black filler more than 20wt% loading is needed. However, the development of applications based on nanotubes with high value addition has been hampered by processing limitations resulting from the difficulty of dispersing in a polymeric medium. The formation of aggregates or bundles of nanotubes into host polymer do not allow obtaining homogeneous mixtures. The solution lies in the functionalisation of nanotubes with polymer chains to reduce the effect of interactions between CNTs and better compatibility with the host polymer in the mixture. Here, in this study, we aim to functionalise carbon nanotubes by using a polyolefin grafting procedure involving radical ‘grafting onto’.

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